Blaszkewicz M, Baumhoer G, Neidhart B
Int J Environ Anal Chem. 1987;28(3):207-14. doi: 10.1080/03067318708081862.
An analytical compound procedure is described for the determination of trimethyl- and triethyllead in water samples like rain, melted snow, and surface waters. The method consists of an enrichment step (adsorption onto and elution from silica gel), a chromatographic separation with column switching (HPLC including pre-column enrichment), and a spectrophotometric detection (chemical reaction detector). The detection limits for the whole procedure, starting with 500 ml sample volume, are 15 pg/ml and 20 pg/ml for trimethyl- and triethyllead resp. The standard deviation for repeated analysis of a sample containing 90 pg Et3Pb+/ml is calculated to +/- 4%. The method also covers the analysis of the chemically mixed trialkyllead species Me2EtPb+ and MeEt2Pb+. The investigation of several water samples taken from different locations shows the presence of trimethyl- and triethyllead in the concentration range of 20-100 pg/ml.
描述了一种用于测定水样（如雨水、融雪水和地表水）中三甲基铅和三乙基铅的分析复合方法。该方法包括一个富集步骤（吸附到硅胶上并从硅胶上洗脱）、柱切换色谱分离（包括柱前富集的高效液相色谱）和分光光度检测（化学反应检测器）。整个过程的检测限（起始样品体积为500毫升），三甲基铅和三乙基铅分别为15皮克/毫升和20皮克/毫升。对含有90皮克/毫升三乙基铅离子的样品进行重复分析，计算出的标准偏差为±4%。该方法还涵盖了化学混合的三烷基铅物种二甲基乙基铅离子和甲基二乙基铅离子的分析。对从不同地点采集的多个水样的调查表明，三甲基铅和三乙基铅的浓度范围为20 - 100皮克/毫升。
